Public bug reported:
Xubuntu 17.10 artful
Kernel: x86_64 Linux 4.13.0-32.35-generic
cifs-utils 2:6.7-1
smbclient 2:4.6.7+dfsg-1ubuntu3.1
Mounting an SMB share with
sec=ntlmssp,vers=3.0,credentials=/home/.smbcredentials,dir_mode=0777,file_mode=0777
in /etc/fstab gives the error: "CIFS VFS: ioctl error in
smb2_get_dfs_refer rc=-2" in dmesg.
Shares mounted this way are readable, but writing data to them (or using
programs such as EasyTAG to write to them) ultimately fails. This bug
did not occur in kernel 4.10. Mounting the share(s) with vers=1.0 does
not give the error, but this is a haphazard fix as SMB v3.0 carries many
security features with it not avaliable in SMB 1.0.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: kernel-bug
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https://bugs.launchpad.net/bugs/1748689
Title:
Mounting SMB shares with vers=3.0 in fstab gives "ioctl error in
smb2_get_dfs_refer rc=-2"
Status in linux package in Ubuntu:
New
Bug description:
Xubuntu 17.10 artful
Kernel: x86_64 Linux 4.13.0-32.35-generic
cifs-utils 2:6.7-1
smbclient 2:4.6.7+dfsg-1ubuntu3.1
Mounting an SMB share with
sec=ntlmssp,vers=3.0,credentials=/home/.smbcredentials,dir_mode=0777,file_mode=0777
in /etc/fstab gives the error: "CIFS VFS: ioctl error in
smb2_get_dfs_refer rc=-2" in dmesg.
Shares mounted this way are readable, but writing data to them (or
using programs such as EasyTAG to write to them) ultimately fails.
This bug did not occur in kernel 4.10. Mounting the share(s) with
vers=1.0 does not give the error, but this is a haphazard fix as SMB
v3.0 carries many security features with it not avaliable in SMB 1.0.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748689/+subscriptions
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